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Hubble · Caldwell 43 · ESA/Hubble & NASA; Acknowledgment: Josh Barrington

Caldwell 43

Galaxy in Pegasus · 48.877 million light-years (est. from redshift)

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TypeGalaxy
ConstellationPegasus
Right ascension0h 03m 15s
Declination+16° 09′
Object distance48.877 million light-years (est. from redshift)
Apparent magnitude10.6
Apparent size4.4′ (arc-minutes)
Approx. true diameter62,558 light-years across
Also known asC43 · NGC 7814
Caldwell 43 is a galaxy (NGC 7814) in the constellation Pegasus — a distant island of stars far beyond the Milky Way. It appears as number 43 in the Caldwell catalogue, Sir Patrick Moore's 1995 list of 109 bright deep-sky objects for amateur astronomers. It spans roughly 4.4 arc-minutes on the sky. At about magnitude 10.6, it is a fainter object best hunted with a moderate telescope under dark skies.

Although it appears about 4.4′ wide on the sky, its real span is roughly 62,558 light-years — the difference is a measure of how far away it lies.

Observing Caldwell 43

Caldwell 43 lies in the constellation Pegasus and is best placed in the evening sky around September. Its maximum altitude above the horizon depends on your latitude. Lying near the celestial equator, it can be seen from both hemispheres. It is faint — plan for a moderate telescope and a dark, moonless sky. Note that the listed magnitude is spread across the whole object — diffuse galaxies and nebulae are often harder to see than the number alone suggests, so dark, moonless skies help a great deal.

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Sources

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